Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddaa20004151926…

MALICIOUS

PDF

241.7 KB Created: 2021-12-30 22:25:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 71868eac09814a333f1995b2b36d8a84 SHA-1: 0e837e205e846b8b6e3a7b9306b74b9ce8e4e605 SHA-256: 3ddaa20004151926c0fc43e4f6bc8228b3855372b9ce7ee2b8c50d1f8928662e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8454

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/cqho6e85ujork1qqudgq7eb1k4/lovoxobopamubagoxujune.pdf In PDF document text
    • http://virus-safe-zone.com/ckupload/files/tijeluwuzewumegibujele.pdfIn PDF document text
    • https://zenit-npk.ru/files/file/kurusotugekisujure.pdfIn PDF document text
    • http://lucchetta.net/userfiles/files/gewovipisosij.pdfIn PDF document text
    • http://gachbinhduong.com/upload/file/tidakalokevubuzi.pdfIn PDF document text
    • http://xn--djr00fsyfv0o5qgy9u.net/filespath/files/20210919070337.pdfIn PDF document text
    • http://hanyangsteel.com/files/fckeditor/file/15620066161927e83d5840.pdfIn PDF document text
    • http://conditum.nl/userfiles/file/timiwulesuzamurezarubudi.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16161dc187de3f---burawilomugileleji.pdfIn PDF document text
    • https://holcom-solar.com/webroot/img/files/zuwalaxi.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1613825c377882---70466795258.pdfIn PDF document text
    • https://momsgardenfoods.com/ckfinder/userfiles/files/48146739186.pdfIn PDF document text
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614a2439ece5d---48522363668.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/i01d8827mtprqg5s7jr4q24pmp/85583867998.pdfIn PDF document text
    • http://associatedreclaimed.reclaimedoils.com/userfiles/files/kulajalisepikofibozuneru.pdfIn PDF document text
    • http://asirakademi.com/resimler/files/94828829777.pdfIn PDF document text
    • http://rayanchem.com/d/files/74921221882.pdfIn PDF document text
    • https://ketex.com/trcgp/ckfinder/userfiles/files/wemutemu.pdfIn PDF document text
    • http://lohoithaiduong.com/uploads/files/juxapumewiwekor.pdfIn PDF document text
    • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/8mkfcvm1mpqi78j0grr5n23rqp/3813734950.pdfIn PDF document text
    • http://hbisan.com/userfiles/file/mulabonixutupexa.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615f59e6be1de---tobanupuguderetosufekij.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bce3a57e5df---wokamoratelojuniken.pdfIn PDF document text
    • https://lexconsulting.ro/webroot/files/media/57587077357.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/vItLtdF7Pec/uplcv?utm_term=beep+song+tamil++isaiminiPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00035938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35938 10548 bytes
SHA-256: 48dcf05d317e851d1c55a26107adee774e464ef44251cae59e59158b47914731
font_01_sfnt_off0003714a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3714A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000387e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x387E9 18260 bytes
SHA-256: 64333dde44f8b1a628c490ad95bad8ec38ce09567ad0f10c49f91ee209af5bc6